[Part 2]- TOPIC 3: Ecosystems, biodiversity and management ππͺΌ Flashcards
What climate do temperate grasslands have ?
Hint: distinct
- temperate grasslands have distinct hot and cold seasons.
- they are found at higher altitude and are at higher altitudes, than tropical grasslands.
What else can you tell me about the climate of temperate grasslands ?
Hint: hot
- temperate grasslands have hot summers that are up to 40c, and have cold winters that can be down to -40c.
- temperate grasslands also receive 250-500mm of precipitation each year [mostly in the late spring and early summer]
- and since theyβre found at mid-latitudes, the amount of light they receive varies throughout the year.
What characteristics do temperate grasslands have ?
- plants- temperate grasslands are also dominated by grasses, and small plants. There are very few trees in temperate forests.
- animals- temperate forests are home to fewer animal species, than tropical grasslands.
- soils- the high temperatures in summer, mean that decomposition happens quickly, so soils are relatively thick and nutrient-rich.
Why are there very few trees in temperate grasslands ?
- there very few trees in temperate grasslands, because rainfall is too low to support large plants.
What animal species can be found in temperate forests ?
- in temperate forests, the animal species that can be found are mammals and rodents such as:
- bisons
- wild horses
- mole rats
What is the tundra biome found ?
- the tundra is found at high latitudes, that are above 60*N in: Northern Europe, Alaska and Northern Canada.
What is the climate of the tundra ?
- temperatures are very low- above 5-10c during the summer; lower than -30c in the winter.
- precipitation is also very low, around less than 250mm per year. Most of this falls as snow.
- tundras are found at high latitudes, meaning they get near-continuous daylight in the summer and little to no daylight in the winter.
Fill in the gaps: In the tundra, there is more cloud _____ in the summer.
- In the tundra, there is more cloud cover in the summer [the fractions of clouds oberved, that cover the sky]
What are the characteristics of the tundra?
- plants- the cold climate, and lack of light in the winter make it hard for plants to grow, and there are hardly any trees.
- animals- the cold climate and lack of vegetation means relatively few animal species live in the tundra.
- soils- the sparse vegetation of the tundra produces little leaf litter, and organic matter slowly decomposes in the cold and dry climate.
- This means the soil in the tundra is thin and nutrient-poor.
In the tundra, what do some animals do ?
- Some animals even migrate for the south, in the winter.
Why is the soil in the tundra thin, and nutrient-poor ?
Hint: leaf litter
- the soil in the tundra is thin and nutrient-poor, because:
- the sparse vegetation of the tundra produces little leaf litter, and organic matter will slowly decompose in the cold and dry climate.
What vegetation and animals are found in the tundra ?
- vegetation such as moss, grass and low shrubs are found in the tundra.
- and animals like artic hares, artic foxes, mosquitoes and lots of birds are found in the tundra.
What else can you tell me about the soil in the tundra ?
- there is a layer of permafrost [meaning permanently frozen ground] below the soil surface.
- This can stop water from draining away.
What is the biosphere ?
- the biosphere, includes all part of the Earth that are occupied by living organisms such as: plants, animals, bacteria, fungi and the soil and water those organisms live in.
Explain how the biosphere is a vital system
- the biosphere is a vital system, as the living organisms in it, provide goods that people need to survive.